Air cobttror for carburetors



March 17, 1925- 1,530,317

A. OAMKA AIR CONTROL FOR CARBURETORS Filed July 26, 1924 INVENTOR.flzzyrzaZ' Oqmka.

ATTORNEY.

sion in the engine.

Patented Mar. 17, 1925.

PATEpN T OFFICE.

AUGUST OAIVIKA, 0F DE'IBO'IT, MICHIGAN.

AIR CONTROL FOR CARBURETORS.

Application filed July 26, 1924. Serial No. 728,355.

To all whom it may concern:

Be it known that I, AUoUsT "Sarina, a citizen of the United States,residing at Detroit, in the county of lVa-yne and State of Michigan,have invented a new and useful Improvement in Air Controls forCarburetors, of which the following is a specification.

This invention relates to improvements in air controls for carburetors,and consists essentially in the provision of means whereby the amount ofair admitted into the intake side of the carburetor is automaticallyregulated by the degree of suction exerted by the engine; therebyinsuring maximum efficiency from the engine at all times on account ofthe factthat it is always supplied with a uniform mixture. Thisregulation. is efiected by a ball valve adapted to rest on ahorizontally disposed valve seat, so'that the exposed cross sectionalarea of the valve opening varies according to the extent of the lift ofthe ball, which, in turn,

is'dependentupon the amount of suction above referred to.

A second object of the invention is to supply a ball valve of suchdiameter, and so located within the device with regard to the incomingair, that the latter strikes the ball and is diverted against the sidesof the device off which it again rebounds. In this way crosscurrents ofair are set up, which, when they enter the carburetor, break up thegasoline more thoroughly, cause more complete atomization of the fuel,and consequently produce amore powerful explo- Moreover, the bypassopenings, when supplied, are also so located that air entering throughthem will be similarily diverted by the sides of the ball valve.

Another object of the invention is to so design the device that when itis in position within the hot air pipe, and resting against thebell-mouthed end of the air intake of the Carburetor, it is held firmly,without possibility of its moving in any direction, without the aid ofany fastening means other than those ordinarily employed to make thejoint between the hot air pipe and the carburetor air intake.

A further object of the invention is to provide a valve seat sosurrounded by an outwardly and upwardly incllned annular surface thatthe ball valve, although permitted a limited free movement in alldirections, cannot escape from within the body valve 11 is adapted torest.

of the device. The provision of the annular surface also insures theball valve returnlng onto its seat immediately the suction ceases.

With these and other objects in view, my invention consists in certainnovel construction and combination of parts hereinafter more fullydescribed with the aid of the accompanying drawings and claimed.

Figure 1 illustrates a sectional view of the invention in positionwithin a hot air pipe, and bearing against the bell-mouthed air intakeof a carburetor.

Figure 2 is an end elevation of the device, partly in section.

Referring more particularly to the drawings, 1 indicates the cylindricalbody of the device, which is a good push fit into the hot air pipe 2,and has one end bearing against the inlet 3 of the carburetor. Thelength of-the device is such that when one end thereof bears against thebell-mouthed inlet 3, the other end will be in contact with the internalradius 4 of the hot air pipe. In this way longitudinal movement of thedevice is rendered impossible. The curved portion 5 of the body 1 is soshaped as to engage'the internal radius at, so that the device isprevented from turning. This is done as it is necessary to maintain thelongitudinal wall 6 in a substantially horizontal position.

The body 1 is divided into two parts by the transverse walls 7 and 8,connected by the longitudinally disposed wall 6, through which latter acircular opening 9 is provided. The upper side 'of this opening forms avalve seat 10, on which the ball Round the valve seat 10, andsubstantially concentric therewith, is an upwardly and outwardlyinclined annular surface 12, formed within the wall 6. This surface 12is so placed that though the ball valve 11 is allowed free movement inall directions within the device, it cannot pass between the upper edgeof the said annular surface and the inner cir cumference of the body 1.

When the carburetor is in operation suction is exerted which raises theball valve 11 off its seat 10, and allows air to pass through theopening 9. The size of the ball is such that air must strike it and bedeflected against the inner circumference of the body 1 and the upperface of the longitudinal Wall 6, off either of which the air againrebounds so that cross currents of air are created. it is also foundthat the deflected air causes the ball valve 11 to spin, so that eachtime a different portion of the ball rests on the seat 10; in this Waythe possibility of Wear on the surface of the ball is eliminated, andobviously the extent of the suction determines the amount of the lift ofthe ball valve.

For starting, bypass openings 13 may be arranged round the hole 9, sothat air passing through these openings also strikes the sides of theball valve and is deflected thereby.

While in the foregoing the preferred embodiment of the invention hasbeen described, it is understood that I may make alterations ancmodifications in the construction, provided the said alterations andmodifications fall within the scope of What I claim.

l Vhat I claim as my invention and desire to secure by Letters Patentis:

1. An air control for carbiuetors comprising a cylindrical body portiondivided interiorly by two transverse Walls each extending acrosssubstantially half the diameter of said body portion, said transverseWalls being connected by a longitudinally disposed horizontal Wallhaving an opening therethrough, a valve seat on the upper face of saidopening, a ball valve, and an upwardly and outwardly disposed annularsurface substantially concentric With said Valve seat and formingportion of said horizontal wall, in combination with means within saidbody portion for maintaining said valve seat in a substantiallyhorizontal position Within a hot air pipe.

2. An air control for carburetors comprising a cylindrical body portiondivided interiorly by two transverse Walls each extending acrosssubstantially half the diameter of said body portion, said transverse\valls being connected by a longitudinally disposed horizontal Wallhaving an opening therethrough, a valve seat on the upper face of saidopening, and a ball valve, said ball valve having a limited freemovement in all directions in the upper part of said body portion, andprevented from escaping therefrom by the propinquity of the upper edgeof an inclined annular surface to the inner circumference of said bodyportion, in combination with means Within said body portion formaintaining said valve seat in a substantially horizontal positionWithin a hot air pipe.

An air control for carburetors comprising a cylindrical body portion,and means for preventing both longitudinal and rotary movement of saidbody portion When in position within a hot air pipe and having one endresting against a bell-mouthed intake of a carburetor consisting solelyin the size and shape of said body portion and Without the use of anyauxiliary fastening means, in combination with a horizontal valve seatand a ball valve Within said body portion.

4L. An air control for carburetors comprising a cylindrical body portionadapted to lit Within a hot air pipe and having one end shaped so as tofit on and bear againstan internal radius in said hot pair pipethroughout part of the diameter of said body portion, in combinationwith transverse Walls Within said body portion connected by alongitudinally disposed Wall having an opening therethrough, a valveseat on the upper face of said opening, and a ball valve.

5 An air control for carburetors as described in claim 1, wherein bypassopenings are arranged concentrically round the valve seat, said bypassopenings breaking directly into the side of said valve seat.

AUGUST OAMKA.

